Science Daily

Alzheimer’s may leave a mark on the brain long before plaques appear

Brain changes associated with Alzheimer’s may begin at least seven years before amyloid plaques become detectable with current PET scans. Researchers uncovered the signal by tracking healthy older adults with repeated brain imaging over nearly 20 years. The discovery could help scientists identify Alzheimer’s earlier and suggests that important disease processes may start before visible plaque buildup.

science  6d ago

Science Daily

A coffee-table-size scorpion roamed Earth before forests existed

A meter-long scorpion with massive pincers stalked ancient Britain 415 million years ago, long before forests and the better-known age of giant insects. Its surprising size and possible semi-aquatic lifestyle could reshape ideas about how early arthropods became giants.

science  6d ago

Science Daily

Too much coffee may weaken bones, study finds

Following nearly 10,000 older women for 10 years, researchers found that tea drinking was associated with slightly higher hip bone density. Moderate coffee consumption did not appear harmful, but drinking more than five cups a day was linked to lower bone density. The findings suggest tea may offer a small bone-health boost, while excessive coffee could carry some drawbacks.

science  6d ago

Science Daily

A search for one exotic particle uncovered two strange new structures

A search for one mysterious particle unexpectedly revealed evidence for two different structures that may belong to the bizarre family of exotic subatomic particles known as XYZ states. The findings could help physicists uncover new ways that quarks and gluons combine to create matter.

science  6d ago

Science Daily

Earth may have lost the Sun’s protective shield millions of years ago

NASA-funded studies suggest Earth’s climate has been influenced by both the Sun’s travels through dense regions of the Milky Way and the violent superflares of its youth. Those events may help explain ancient ice ages as well as how early Earth stayed warm enough for liquid water when the Sun was much dimmer.

science  6d ago

NASA News

APOD: 2026 September 2 – Solar Eclipses and Culture

APOD Science APOD APOD: 2026 September 2 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss   APOD Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. Solar Eclipses and […]

science  6d ago

Science Daily

Your neighborhood in your 20s may shape your heart decades later

Where you live in early adulthood may quietly shape your heart health for decades. Researchers found that adverse neighborhood conditions were linked to a higher risk of coronary artery calcification in midlife, an early warning sign of cardiovascular disease.

science  6d ago

Science Daily

Obesity leaves a lasting memory in immune cells

Obesity appears to leave a molecular imprint on key immune cells that may persist for 5 to 10 years after weight loss. This long-lasting “obesity memory” could help explain why some obesity-related health risks remain elevated even after body weight returns to normal.

science  6d ago

NASA News

NASA Selects Blue Origin as Mars Telecommunications Network Provider

NASA awarded Blue Origin a contract Tuesday to develop the agency’s Mars Telecommunications Network, a next-generation communications system that will enable reliable, high-bandwidth communications and navigation services for current and future Mars missions. The firm-fixed-price contract has a maximum potential value of approximately $700 million to deliver a high-performance Mars telecommunications orbiter to NASA no […]

science  6d ago

NASA News

What’s Up: September 2026 Skywatching Tips from NASA

Brilliant Venus and a Harvest Moon Use the Moon to find Antares and the Teapot, spot brilliant Venus, welcome the equinox, and see the Harvest Moon near Saturn and Neptune. Skywatching Highlights Transcript The Moon joins a tea party… Venus cranks up the brightness… the seasons officially change… and the Harvest Moon meets up with […]

science  6d ago

NASA News

Historic Engines Take Their Place on Artemis III

On Aug. 24, technicians at NASA’s Kennedy Space Center in Florida began installing the four RS‑25 engines in the core stage of the agency’s Space Launch System (SLS) rocket that will carry the Artemis III crew into low Earth orbit in 2027. Each RS‑25 engine has a unique serial number that records its detailed flight […]

science  6d ago

The Guardian Science

Could humans ever communicate with whales? - video

Ever since the earliest known recording of whale song was made in 1949, researchers have been captivated by the wails, rumbles, clicks, grunts and squeals of their communication. As technology improves, scientists are decoding the intricate patterns that make different species’ vocalisations distinctive. Madeleine Finlay hears from Emma Bryce, a journalist who has spent months investigating human efforts to understand whale song. She explains how this knowledge could help us better protect whale

science  Sep 1, 2026

Science Daily

Mindfulness may lower blood pressure in just 8 weeks

Mindfulness, gratitude, and optimism training may improve blood pressure, inflammation, and other heart-health measures within just eight to 12 weeks. The strongest programs paired daily practice with regular reinforcement, suggesting that improving psychological well-being could become another tool for protecting cardiovascular health.

science  Sep 1, 2026

Science Daily

Scientists discover why snake embryos twist into spirals

Snake embryos begin life curled into a distinctive right-handed spiral, and scientists may finally know why. Their bodies grow faster than their guts, creating a tether that forces the lengthening embryo to buckle and twist inside the egg. Researchers reached the conclusion after studying more than 900 embryos and using CT scans to reveal the hidden anatomy behind the coils.

science  Sep 1, 2026

Science Daily

Reaching 90 without dementia doesn’t mean you’re in the clear

A study of people over 90 found that dementia risk remains strongly shaped by sex, race and genetics, with women and black participants facing notably higher risks. Intriguingly, some people stayed cognitively healthy despite carrying major risk factors, potentially offering clues to how the brain can resist dementia deep into old age.

science  Sep 1, 2026

Science Daily

A massive plume deep beneath Africa is pulling the continent apart

A vast plume rising from deep inside Earth may be responsible for mysterious movements along the East African Rift. The discovery reveals how forces deep in the mantle are working alongside shallower geological forces as the continent slowly pulls apart.

science  Sep 1, 2026

Science Daily

One of Earth’s driest places was just covered in snow

Rare storms covered huge stretches of Chile’s Atacama Desert in snow and dumped extraordinary amounts of rain on one of the driest regions on Earth. The extreme weather shut down observatories, triggered damaging floods and mudflows, and unfolded against the backdrop of a strengthening El Niño.

science  Sep 1, 2026

Science Daily

NASA’s Swift telescope is back, but time is running out

NASA has brought two of Swift’s telescopes back online after technical problems derailed a commercial mission intended to rescue the aging observatory by raising its orbit. With atmospheric drag pulling the spacecraft downward faster than expected, scientists may have only another month or two before Swift falls below a critical operating altitude.

science  Sep 1, 2026

Science Daily

NASA delays Crew-13 launch after leak found on SpaceX Dragon

NASA and SpaceX have delayed Crew-13 after finding an oxidizer leak in the Dragon spacecraft’s propulsion system during prelaunch preparations. Engineers are investigating the problem before the four-person crew can begin its journey to the International Space Station.

science  Sep 1, 2026

Science Daily

Goodbye CPAP? New sleep apnea pill cuts breathing events by 44%

A once-nightly pill cut breathing interruptions by about 44% in a major phase 3 sleep apnea trial, while improving oxygen levels and disease severity. By strengthening the muscles that keep the airway open during sleep, AD109 could offer a new option for people unable to tolerate CPAP.

science  Sep 1, 2026